Home / 1,188,626.45-1,639,063.91-705,098.18

Finding the Fourth Proportional to 1,188,626.45, 1,639,063.91 and 705,098.18

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Solution

The fourth proportional to 1,188,626.45, 1,639,063.91 and 705,098.18 is: 972,299.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,626.45 : 1,639,063.91 = 705,098.18 : x
  2. Step 2: Convert to fraction form
    1,188,626.45/1,639,063.91 = 705,098.18/x
  3. Step 3: Cross multiply
    1,188,626.45x = 1,639,063.91 × 705,098.18
  4. Step 4: Simplify right side
    1,188,626.45x = 1,155,700,979,844.68
  5. Step 5: Solve for x
    x = 1,155,700,979,844.68/1,188,626.45
  6. Step 6: Final answer
    x = 972,299.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.